I believe there is also an example of how to select initial values for k-means
in Modern and Applied Statistics with S (Venables and Ripley).
Ken
On 02/29/12, Pascal Oettli wrote:> Dear Rui,
>
> Did you have a look at 'pracma' package? There is a
'kmeanspp' function.
>
> Best Regards,
> Pascal
>
>
> Le 29/02/2012 19:52, Rui Esteves a ?crit :
> >Dear Pascal,
> >
> >>From Wikipedia:
> >
> >In applied statistics, k-means++ is an algorithm for choosing the
> >initial values (or "seeds") for the k-means clustering
algorithm. It
> >was proposed in 2007 by David Arthur and Sergei Vassilvitskii, as an
> >approximation algorithm for the NP-hard k-means problem?a way of
> >avoiding the sometimes poor clusterings found by the standard k-means
> >algorithm.
> >
> >On Wed, Feb 29, 2012 at 11:33 AM, Pascal Oettli
> ><oettli at eps.s.u-tokyo.ac.jp> wrote:
> >>Dear Rui,
> >>
> >>What "++" means? There is kmeans in "stats"
package.
> >>
> >>Best Regards,
> >>Pascal
> >>
> >>
> >>Le 29/02/2012 19:20, Rui Esteves a ?crit :
> >>>
> >>>Dear all.
> >>>
> >>>I am searching for KMeans ++ for R. I cannot find it.
> >>>Do you know any package with it?
> >>>
> >>>Best regards,
> >>>Rui
> >>>
> >>>______________________________________________
> >>>R-help at r-project.org mailing list
> >>>https://stat.ethz.ch/mailman/listinfo/r-help
> >>>PLEASE do read the posting guide
> >>>http://www.R-project.org/posting-guide.html
> >>>and provide commented, minimal, self-contained, reproducible
code.
> >>>
> >>>
> >>
> >
> >
>
> --
> Dr. Pascal Oettli
> Project Research Associate
> Department of Earth and Planetary Science
> Graduate School of Science
> The University of Tokyo
>
> ______________________________________________
> R-help at r-project.org mailing list
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> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.